Adapter-box.



M. SCHMITT.

ADAPTER BOX.

APPLICATION FILED APR. 9. 1912.

Patented Dec. 31, 1912.

2 SHEETS-SHEET 1.

lllllll :Hillllll COLUMBIA PLANOGRAPH Co., WASHINGTON. D. c.

M. SCHMITT.

ADAPTER BOX.

-AP'PLIGATION FILED uns, 1912.

Patented Dec. 31, 1912.

2 SHEETS-SHEET 2.

UNTTED STATES PATENT OFFICE.'

MARTIN SCHMITT, OF BROOKLYN, NEW YORK.

ADAPTER-BOX.

To all whom it may concern:

Be it known that I, MARTIN SCHMITT, a citizen ot the United States, residing at Brooklyn, in the county of Kings and State ot New York, have invented a certain new and useful improvement in Adapter-Boxes, of which the following is a specitication.

The invention relates to an adapter box tor inter-position between the case ot an electric meter and the case ot the cut-out block associated there-with, in order to protect the connections between said block and meter.

The invention consists more particularly in the telescopic construction of the adapte-r box in order to make it tit upon meter cases of dierent dimensions.

ln the accompanying drawingsmFigure l is a front elevation, showing the box in place between the meter case and the cut-out block box. Fig. 2 is a side elevation. Fig. 8 is a section on the line 3, 3 of Fig. el. Fig. 4 is a section on line 4, t of Fig. l. Fig. 5 is a section on line 5, 5 of Fig. l. Fig. 6 is a section on line 6, 6 of Fig. 1. Fig. 7 is a perspective view of the adapter box with its parts separated.

Similar letters of reference indicate like parts.

A, dotted lines, Fig. 1, is any suitable torm of cut-out block, inclosed in the metal box B, having a iianged cover (l. A lug D extends through the end iiange ot said cover and receives a seal fastening E. Lugs F on the side flanges of the cover enter slots in the wall ot the box B. Near one end ot the box is an opening, closed by a sliding plate G, in which plate is any suitable sleeve or bushing H, through which the circuit leads I pass to the cut-out block A.

J is an electric meter case, the terminals of which are connected by the wires K, dotted lines, to said cut-out block.

The adapter box is substantially a U- shaped trame, having a front wall 7, a top wall 8, side walls 9, and at the ends ot the arms, bottom walls l0, these designations according with the position ot the box, as shown in Fig. l. Each leg of the U and the cross piece thereof has a telescopic joint, so that the box is made in four parts, M, N, O, P-the part N telescoping with the parts M and O, and the part M telescoping with the parts N and P. Taking said parts in Specification of Letters Patent.

Application filed April 9, 1912.

Patented Dec. 31,1912.

serial No. 689,498.

detail: 0n the front wall of part N are formed tongues Q, which slide freely in a slot R in the front wall of part M. Also on the top wall of parts M and N are formed tongues S, T. A The tongues S enter a slot U in part O and slide therein, and the tongues T enter a similar slot V in part P. In the part O is a slot lV, through which passes a screw X which engages with part N. In the part P is a similar slotI Y, through which passes a screw Z which engages with part M. The top wall in parts M, N is cut away to form a recess c, which, when the adapter box is placed against the connection block box B, as shown in Fig. l, comes opposite to a similar recess in the bottom wall of said connection box. Through said recesses the connections K pass, as already described. The adapter box is secured to the connect-ion box by a screw (Z, Fig. 3, having its head within said connection box, which screw passes through an elongated slot c in the bottom wall of the connection box, an elongated slot o in the top wall of part N, and enters the top wall of part M.

By reason of the foregoing construct-ion, the adapter box may be adjusted to fit meter cases of various widths and to extend along said cases on each side thereof for ditierent distances. The width adjustment is etlected by loosening screw d and moving the parts M, N toward or from one another until the selected meter case tits snugly within them, when the screw Z is tightened. Similarly, the extent of overlapping of the sides of the meter case by the parts O, P is adjusted by loosening the screws X and Z, moving said parts toward or away from the parts M, N and then tightening said screws.

I cla-im:

l. An adapter box for meter cases, constructed in sections telescopically adjustable with relation to one another, each section comprising side walls and a top wall, and means for securing said sections in adjusted position.

2. An adapter box for meter cases, constructed in sections telescopically adjustable with relation to one another, each section comprising a front wall and a top wall, and means tor securing said sections in adjusted position.

3. An adapter box for meter cases, in U- form, constructed in tour sections each of which comprises a side Wall, a front Wall In testimony whereof I have aixed my and an end Wall, the said sections being telesignature in presence of two Witnesses.

scopicall ad'ustable With relation to One another? J MARTIN SCHMITT. 5 4. An adapter box for meter cases, in U- Witnesses: Y

form, having a telescope joint in each arm GERTRUDE T. PORTER,

and in the cross-piece uniting said arms. MAY T. MCGARRY.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. C. 

